Year	% of GDP
1995	2.517766497461929
1996	2.5101214574898787
1997	2.4770240700218817
1998	2.7940288493794028
1999	3.599221789883268
2000	4.100963774944237
2001	4.277072977601867
2002	4.425833641825896
2003	4.77750508341168
2004	5.622020208877427
2005	6.187294809644187
2006	6.565660335618609
2007	6.6660226689961855
2008	6.670840363182337
2009	4.205989994071695
2010	2.860467779720984
2011	4.206093988522943
2012	1.991637655373393
2013	3.2626430747118844
2014	3.439352184643311
2015	3.585278991417911
2016	3.689024692798163
2017	3.733753799150493
2018	3.2250182031488466
2019	2.5624333715007697